For presentation purposes, it'd be really nice to be able to change the colors of the insides of parts when using the cross sectional analysis tool. It is extremely hard to communicate design intent when I'm saying "that beige, sort of peach-like color is this component, which does this, whereas that light purple/pink-ish color has this function. I would love to be able to say "the green part is this" and "the blue part is this" to communicate my design intentions, and I would like to be able to change the color of the inside cross section of my part to make that simpler.
This is especially frustrating for me because I have found that Fusion 360 is not very colorblind-friendly (keep in mind, colorblind doesn't mean I can't see color, it means I have trouble differentiating certain shades of some colors, like particular hues of red, green, and yellow - this also applies to colors that involve red or green, like purple). In this image, there are three separate components (the large body with the spring in the middle, a bushing that goes around the shaft of the large body, and a thin sleeve that goes around the spring). I find it very difficult tell the difference between the bushing and the sleeve, and I can't begin to describe what these three colors actually are. As a designer, this makes it very hard to communicate my designs to people, so allowing users to changes these colors instead of having them be randomly generated would be very helpful. There are other issues I've had in identifying colors too, like when construction lines pass inside of closed loops in sketches.